r0 = socket$inet6_udp(0xa, 0x2, 0x0)
sendmsg$inet6(r0, &(0x7f0000001e00)={&(0x7f0000001b40)={0xa, 0x4e24, 0x0, @mcast1}, 0x1c, 0x0, 0x0, &(0x7f0000001c40)=[@tclass={{0x14}}, @dstopts_2292={{0x18}}, @hoplimit={{0x14}}], 0x48}, 0x0)